{
  "kind": "csv",
  "sample": "/assets/review/revenue.csv",
  "question": "What does a checkable workbook answer look like?",
  "title": "Revenue by Region",
  "prompt": "Show Revenue by Region and explain Fixed Revenue.",
  "flowLabel": "Illustrative MCP sequence · not a captured host session",
  "dimension": "Region",
  "measure": "Revenue",
  "formula": "SUM([Revenue])",
  "definition": "{ FIXED [Region] : SUM([Revenue]) }",
  "expected": [
    [
      "East",
      150
    ],
    [
      "West",
      225
    ]
  ],
  "provenance": "Authored synthetic public sample; not customer data or host-integration proof"
}